Coil winding device



Dec. 17, 1946. J, LU E 2,412,591

COIL WINDING DEVICE Filed Oct. 29, 1945 mmvro OLIVER J. LUKE ATTORNEY Patented Dec. 17, 1946 OOH wnsnnvo. DEVICE Oliver J. Luke, St. Louis, Mo., assignor to Carter Carburetor Corporation, St. Louis, Mo., a corporation of Delaware Application October 29, 1945, Serial No. 625,281

8 Claims. I

This invention. relates to holding devices for wires or cords which must be held taut during such manipulation of the wire or cord as the winding of coils.

Coil winding machines, particularly for small motor armatures, are provided with hooks or pins conveniently located to receive a coiled end of the wire being wound and hold the wire taut during manipulation. However, at the end of the Winding, it is necessary for the operator to unwind or pull the wire from the pin or hook and this is difficult where very fine Wire is used.

The object of the present invention is to provide such a holding element for the end of a wire or cord being manipulated together with means for quickly and conveniently sweeping or casting off the wire from the pin at the end of the winding operation.

This object and other more detailed objects hereafter appearing are attained by the device holding device.

Fig. 3 is a longitudinal section of the device.

Fig. 4 is a view similar to Fig. 3, but showing the wire pushed ofi its holding pins.

The coil winder in Fig. 1 comprises a motor 6 which drives a shaft 1 supported at its outer extremity by a journal bearing 8 carried on framing projection 9. Mounted intermediately of the shaft is a winding device Ii for motor armatures, this device being of known construction. Mounted on the device and carried therewith is the holding device l to which a wire l2 may be attached for holding the wire taut while the shaft is rotated to wind the coil.

The holding device, best shown in Figs. 2, 3, and 4, comprises a base I having a pairof permanently mounted pins l6 and I! projecting laterally therefrom. The base also has a pair of countersunk holes l3 and I9 through which slidably extend a pair of rods and 2|. A strip or push-01f element 22 is rigidly secured to the lefthand extremities of rods 20 and 2| and has a pair of holes slidably receiving pins l6 and I1.

An actuator plate 23 is rigidly attached to the opposite ends of rods 20 and 2|. Coiled springs 24 and 25 are compressed between the countersunk portions of recesses 18 and P9 in the base and plate 23 and normally maintain the push-01f device in the position shown in Fig. 3 with plate element 22 at the inner extremities of the projecting portions of pins l6 and I! and plate 23 spaced outwardly of the base member. An additional wire holding pin 29 projects longitudinally from base I5 and has a sharp edge 29a.

In operation, at the start and during the progress of the winding, wires 26, 21, and 28 are intermediately looped about pins l6 and I1, thence passed between guides 30 of the winding machine. The extreme end of wire 28 is coiled about pin 29 and edge 29a used to break off excess wire.

After the coil is completely wound, the operator strikes actuating plate 23 to move it and push-off plate 22 to the position shown in Fig. 4 which sweeps the wire loops from pins 16 and I1 and also pulls the end of the wire from pin 29. This leaves the ends of the various coils free for attachment as by soldering to the commutator bars. Since actuator plate 23 is relatively large and the wires may be released from their holding pins simply by striking the push-Ofl member, this operation is much simpler and faster than would be the case where the operator must embrace the small pin and wire loops with his fingers to pull them off with the holding pins.

Obviously, the number of holding pins may be varied in accordance with the particular requirements of the winding machine. The invention may be modified in this and other respects as will occur to those skilled in the art and the exclusive use of all modifications as come within the scope of the appended claims is contemplated.

I claim:

1. A wire or cord holding device comprising a base, a pin projecting therefrom for attachment of a wire or cord, and a push-off element slidably mounted on said pin, said element being actuable outwardly of said pin to force the cord or Wire therefrom.

2. A wire or cord holding device comprising a base, a pin projecting therefrom for detachably holding a wire or cord, and a push-01f element having a recess slidably receiving said pin, said element having projecting structure actuable to move said element outwardly along said pin and detach a cord or wire therefrom.

3. A wire or cord holding device comprising a base, a pin projecting therefrom for detachably holding a wire or cord loop, and a push-off element comprising a part separate from said base and slidable on said pin and actuable outwardly thereof to detach the wire or cord loop therefrom.

4. A wire or cord holding device comprising a base, a pin projecting therefrom for detachably holding a wire or cord loop, a push-oil element comprising a part separate from said base but slidable on and actuable outwardly of said pin to detach a wire or cord 100p therefrom, and means yieldingly maintaining said part inwardly of the wire or cord loop receiving portion of said pin.

5. A wire or cord holding device comprising a base, a pin projecting therefrom for detachably receiving a wire or cord loop, and a push-off member comprising a pair of parts on opposite sides '7. A device for detachably holding the end of a wire or cord during manipulation of the wire or cord comprising a base, a pin projecting therefrom about which the wire or cord may be wound, a push-off member comprising a part having a hole slidable on said pin and a guiding element slidable in said base member, and spring means normally maintaining said push-off member with said part spaced inwardly of the wire or cord receiving part of said pin and said element projecting beyond said base for actuation by the operator to cause said piece to sweep said wire or cord from said pin.

8. A device as described in claim 7 in which said push-off member has a pair of elements slidable through said base, said elements being connected by a striker plate on the opposite side of said base from said element.

OLIVER J. LUKE. 

